These cipher suites do not preserve forward-secrecy and are not commonly used. Other TLS implementations (ex: Rustls) do not support or enable these suites by default. RFC 9325 [1] states that these suites should not be used. The IETF Draft "Deprecating Obsolete Key Exchange Methods in TLS" [2] mandates that these suites not be used.
Some TLS_RSA_* cipher suites are already disabled because they use DES, 3DES, RC4, or NULL, which are disabled. This action will disable all remaining TLS_RSA cipher suites. [1] RFC 9325, Recommendations for Secure Use of TLS and DTLS (https://www.rfc-editor.org/rfc/rfc9325.html#section-4.1-2.5.1): "Implementations SHOULD NOT negotiate cipher suites based on RSA key transport, a.k.a. "static RSA". Rationale: These cipher suites, which have assigned values starting with the string "TLS_RSA_WITH_*", have several drawbacks, especially the fact that they do not support forward secrecy." [2] IETF Draft, Deprecating Obsolete Key Exchange Methods in TLS (https://www.ietf.org/archive/id/draft-ietf-tls-deprecate-obsolete-kex-05.html#section-4): "Clients MUST NOT offer and servers MUST NOT select RSA cipher suites in TLS 1.2 connections. (Note that TLS 1.0 and 1.1 are deprecated by [RFC8996], and TLS 1.3 does not support static RSA [RFC8446].)" ------------- Commit messages: - 8245545: Disable TLS_RSA cipher suites Changes: https://git.openjdk.org/jdk/pull/22163/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22163&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8245545 Stats: 115 lines in 13 files changed: 75 ins; 10 del; 30 mod Patch: https://git.openjdk.org/jdk/pull/22163.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22163/head:pull/22163 PR: https://git.openjdk.org/jdk/pull/22163
